import { horizontalMenu, putPreloader, renderImageFromUrl } from "../../components/misc";
//import Scrollable from '../../components/scrollable';
import Scrollable from '../../components/scrollable_new';
import { $rootScope } from "../utils";
import appMessagesManager from "./appMessagesManager";
import appPhotosManager from "./appPhotosManager";
import appPeersManager from "./appPeersManager";
import appUsersManager from "./appUsersManager";
import appProfileManager from "./appProfileManager";
import { RichTextProcessor } from "../richtextprocessor";
import { logger } from "../polyfill";
import appImManager from "./appImManager";
import appMediaViewer from "./appMediaViewer";
import LazyLoadQueue from "../../components/lazyLoadQueue";
import { wrapDocument, wrapAudio } from "../../components/wrappers";
import AppSearch, { SearchGroup } from "../../components/appSearch";
import AvatarElement from "../../components/avatar";
import appForward from "../../components/appForward";
import { mediaSizes } from "../config";

const testScroll = false;

let setText = (text: string, el: HTMLDivElement) => {
  window.requestAnimationFrame(() => {
    if(el.childElementCount > 1) {
      el.firstElementChild.remove();
    }
    
    let p = document.createElement('p');
    p.innerHTML = text;
    el.prepend(p);
    
    el.style.display = '';
  });
};

class AppSidebarRight {
  public sidebarEl = document.getElementById('column-right') as HTMLDivElement;
  public profileContainer = this.sidebarEl.querySelector('.profile-container') as HTMLDivElement;
  public profileContentEl = this.sidebarEl.querySelector('.profile-content') as HTMLDivElement;
  public contentContainer = this.sidebarEl.querySelector('.content-container') as HTMLDivElement;
  public profileElements = {
    avatar: this.profileContentEl.querySelector('.profile-avatar') as AvatarElement,
    name: this.profileContentEl.querySelector('.profile-name') as HTMLDivElement,
    subtitle: this.profileContentEl.querySelector('.profile-subtitle') as HTMLDivElement,
    bio: this.profileContentEl.querySelector('.profile-row-bio') as HTMLDivElement,
    username: this.profileContentEl.querySelector('.profile-row-username') as HTMLDivElement,
    phone: this.profileContentEl.querySelector('.profile-row-phone') as HTMLDivElement,
    notificationsRow: this.profileContentEl.querySelector('.profile-row-notifications') as HTMLDivElement,
    notificationsCheckbox: this.profileContentEl.querySelector('#profile-notifications') as HTMLInputElement,
    notificationsStatus: this.profileContentEl.querySelector('.profile-row-notifications > p') as HTMLParagraphElement
  };
  public sharedMedia: {
    [type: string]: HTMLDivElement
  } = {
    contentMembers: this.profileContentEl.querySelector('#content-members') as HTMLDivElement,
    contentMedia: this.profileContentEl.querySelector('#content-media') as HTMLDivElement,
    contentDocuments: this.profileContentEl.querySelector('#content-docs') as HTMLDivElement,
    contentLinks: this.profileContentEl.querySelector('#content-links') as HTMLDivElement,
    contentAudio: this.profileContentEl.querySelector('#content-audio') as HTMLDivElement,
  };
  
  private loadSidebarMediaPromises: {[type: string]: Promise<void>} = {};
  private loadedAllMedia: {[type: string]: boolean} = {};
  
  public sharedMediaTypes = [
    'members',
    //'inputMessagesFilterContacts', 
    'inputMessagesFilterPhotoVideo', 
    'inputMessagesFilterDocument', 
    'inputMessagesFilterUrl', 
    'inputMessagesFilterMusic'
  ];
  public sharedMediaType: AppSidebarRight['sharedMediaTypes'][number] = '';
  private sharedMediaSelected: HTMLDivElement = null;
  
  private lazyLoadQueue = new LazyLoadQueue(5);
  
  public historiesStorage: {
    [peerID: number]: {
      [type: string]: number[]
    }
  } = {};
  public usedFromHistory: {
    [type: string]: number
  } = {};
  
  private log = logger('SR');
  
  private peerID = 0;
  
  public scroll: Scrollable = null;

  private profileTabs: HTMLUListElement;
  private prevTabID = -1;
  
  private mediaDivsByIDs: {
    [mid: number]: HTMLDivElement
  } = {};
  
  public urlsToRevoke: string[] = [];

  private searchContainer = this.sidebarEl.querySelector('#search-private-container') as HTMLDivElement;
  public searchCloseBtn = this.searchContainer.querySelector('.sidebar-close-button') as HTMLButtonElement;
  private searchInput = document.getElementById('private-search') as HTMLInputElement;
  public privateSearch = new AppSearch(this.searchContainer.querySelector('.chats-container') as HTMLDivElement, this.searchInput, {
    messages: new SearchGroup('Private Search', 'messages')
  });

  private loadMutex: Promise<any> = Promise.resolve();
  
  constructor() {
    let container = this.profileContentEl.querySelector('.content-container .tabs-container') as HTMLDivElement;
    this.profileTabs = this.profileContentEl.querySelector('.profile-tabs') as HTMLUListElement;
    
    this.scroll = new Scrollable(this.profileContainer, 'y', 'SR', undefined, 400);
    this.scroll.onScrolledBottom = () => {
      if(this.sharedMediaSelected && this.sharedMediaSelected.childElementCount/* && false */) {
        this.log('onScrolledBottom will load media');
        this.loadSidebarMedia(true);
      }
    };
    //this.scroll.attachSentinels(undefined, 400);
    
    horizontalMenu(this.profileTabs, container, (id, tabContent) => {
      if(this.prevTabID == id) return;
      
      this.sharedMediaType = this.sharedMediaTypes[id];
      this.sharedMediaSelected = tabContent.firstElementChild as HTMLDivElement;

      if(this.prevTabID != -1 && this.profileTabs.offsetTop) {
        this.scroll.scrollTop -= this.profileTabs.offsetTop;
      }

      /* this.log('setVirtualContainer', id, this.sharedMediaSelected, this.sharedMediaSelected.childElementCount);
      this.scroll.setVirtualContainer(this.sharedMediaSelected); */

      if(this.prevTabID != -1 && !this.sharedMediaSelected.childElementCount) { // quick brown fix
        //this.contentContainer.classList.remove('loaded');
        this.loadSidebarMedia(true);
      }

      this.prevTabID = id;
    });
    
    let sidebarCloseBtn = this.sidebarEl.querySelector('.sidebar-close-button') as HTMLButtonElement;
    sidebarCloseBtn.addEventListener('click', () => {
      this.toggleSidebar(false);
    });

    this.searchCloseBtn.addEventListener('click', () => {
      this.searchContainer.classList.remove('active');
      this.privateSearch.reset();
    });
    
    this.sharedMedia.contentMedia.addEventListener('click', (e) => {
      let target = e.target as HTMLDivElement;
      
      let messageID = +target.dataset.mid;
      if(!messageID) {
        this.log.warn('no messageID by click on target:', target);
        return;
      }
      
      let message = appMessagesManager.getMessage(messageID);
      
      let ids = Object.keys(this.mediaDivsByIDs).map(k => +k).sort((a, b) => a - b);
      let idx = ids.findIndex(i => i == messageID);
      
      let targets = ids.map(id => ({element: this.mediaDivsByIDs[id].firstElementChild as HTMLElement, mid: id}));
      
      appMediaViewer.openMedia(message, target, false, this.sidebarEl, targets.slice(idx + 1).reverse(), targets.slice(0, idx).reverse(), true);
    });
    
    this.profileElements.notificationsCheckbox.addEventListener('change', () => {
      //let checked = this.profileElements.notificationsCheckbox.checked;
      appImManager.mutePeer(this.peerID);
    });
  }

  public beginSearch() {
    this.toggleSidebar(true);
    this.searchContainer.classList.add('active');
    this.privateSearch.beginSearch(this.peerID);
  }

  public toggleSidebar(enable?: boolean) {
    /////this.log('sidebarEl', this.sidebarEl, enable, isElementInViewport(this.sidebarEl));
    
    const active = this.sidebarEl.classList.contains('active');
    let willChange: boolean;
    if(enable !== undefined) {
      if(enable) {
        if(!active) {
          willChange = true;
        }
      } else if(active) {
        willChange = true;
      }
    } else {
      willChange = true;
    }

    if(!willChange) return Promise.resolve();

    if(mediaSizes.isMobile) {
      appImManager.selectTab(active ? 1 : 2);
      return Promise.resolve();       
    }

    const set = () => {
      this.sidebarEl.classList.toggle('active', enable);
    };

    return new Promise((resolve, reject) => {
      const hidden: {element: HTMLDivElement, height: number}[] = [];
      const observer = new IntersectionObserver((entries) => {
        for(const entry of entries) {
          const bubble = entry.target as HTMLDivElement;
          if(!entry.isIntersecting) {
            hidden.push({element: bubble, height: bubble.scrollHeight});
          }
        }
  
        for(const item of hidden) {
          item.element.style.minHeight = item.height + 'px';
          (item.element.firstElementChild as HTMLElement).style.display = 'none';
          item.element.style.width = '1px';
        }
  
        //console.log('hidden', hidden);
        observer.disconnect();
  
        set();
  
        setTimeout(() => {
          for(const item of hidden) {
            item.element.style.minHeight = '';
            item.element.style.width = '';
            (item.element.firstElementChild as HTMLElement).style.display = '';
          }

          if(active) {
            appForward.close();
            this.searchCloseBtn.click();
          }

          resolve();
        }, 200);
      });
  
      const length = Object.keys(appImManager.bubbles).length;
      if(length) {
        for(const i in appImManager.bubbles) {
          observer.observe(appImManager.bubbles[i]);
        }
      } else {
        set();
        setTimeout(resolve, 200);
      }
    });
  }

  public filterMessagesByType(ids: number[], type: string) {
    let messages: any[] = [];
    for(let mid of ids) {
      let message = appMessagesManager.getMessage(mid);
      if(message.media) messages.push(message);
    }

    let filtered: any[] = [];

    switch(type) {
      case 'inputMessagesFilterPhotoVideo': {
        for(let message of messages) {
          let media = message.media.photo || message.media.document || (message.media.webpage && message.media.webpage.document);
          if(!media) {
            //this.log('no media!', message);
            continue;
          }
          
          if(media._ == 'document' && media.type != 'video'/*  && media.type != 'gif' */) {
            //this.log('broken video', media);
            continue;
          }

          filtered.push(message);
        }
        
        break;
      }

      case 'inputMessagesFilterDocument': {
        for(let message of messages) {
          if(!message.media.document || message.media.document.type == 'voice' || message.media.document.type == 'audio') {
            continue;
          }
          
          let doc = message.media.document;
          if(doc.attributes) {
            if(doc.attributes.find((a: any) => a._ == "documentAttributeSticker")) {
              continue;
            }
          }
          
          filtered.push(message);
        }
        break;
      }

      case 'inputMessagesFilterUrl': {
        for(let message of messages) {
          if(!message.media.webpage || message.media.webpage._ == 'webPageEmpty') {
            continue;
          }
          
          filtered.push(message);
        }
        
        break;
      }

      case 'inputMessagesFilterMusic': {
        for(let message of messages) {
          if(!message.media.document || message.media.document.type != 'audio') {
            continue;
          }

          filtered.push(message);
        }

        break;
      }

      default:
        break;
    }

    return filtered;
  }
  
  public async performSearchResult(messages: any[], type: string) {
    let peerID = this.peerID;
    let sharedMediaDiv: HTMLDivElement;
    let elemsToAppend: HTMLElement[] = [];
    let promises: Promise<any>[] = [];
    
    // https://core.telegram.org/type/MessagesFilter
    switch(type) {
      case 'inputMessagesFilterPhotoVideo': {
        sharedMediaDiv = this.sharedMedia.contentMedia;
        
        for(let message of messages) {
          let media = message.media.photo || message.media.document || (message.media.webpage && message.media.webpage.document);

          let div = document.createElement('div');
          div.classList.add('media-item');
          //console.log(message, photo);

          let isPhoto = media._ == 'photo';
          
          let photo = isPhoto ? appPhotosManager.getPhoto(media.id) : null;
          let isDownloaded: boolean;
          if(photo) {
            isDownloaded = photo.downloaded > 0;
          } else {
            let cachedThumb = appPhotosManager.getDocumentCachedThumb(media.id);
            isDownloaded = cachedThumb?.downloaded > 0;
          }

          let img = new Image();
          img.classList.add('media-image');
          div.append(img);
          
          //this.log('inputMessagesFilterPhotoVideo', message, media);

          if(!isPhoto) {
            let span = document.createElement('span');
            span.classList.add('video-time');
            div.append(span);

            if(media.type != 'gif') {
              span.innerText = (media.duration + '').toHHMMSS(false);

              /* let spanPlay = document.createElement('span');
              spanPlay.classList.add('video-play', 'tgico-largeplay', 'btn-circle', 'position-center');
              div.append(spanPlay); */
            } else {
              span.innerText = 'GIF';
            }
          }
          
          let load = () => appPhotosManager.preloadPhoto(isPhoto ? media.id : media, appPhotosManager.choosePhotoSize(media, 200, 200))
          .then(() => {
            if($rootScope.selectedPeerID != peerID) {
              this.log.warn('peer changed');
              return;
            }

            let url = (photo && photo.url) || appPhotosManager.getDocumentCachedThumb(media.id).url;
            if(url) {
              renderImageFromUrl(img, url);
            }
          });
          
          img.dataset.mid = '' + message.mid;

          let sizes = media.sizes || media.thumbs;
          if(isDownloaded || (sizes && sizes[0].bytes)) {
            let promise = new Promise((resolve, reject) => {
              img.addEventListener('load', () => {
                clearTimeout(timeout);
                resolve();
              });

              let timeout = setTimeout(() => {
                this.log('did not loaded', img, media, isDownloaded, sizes);
                reject();
              }, 1e3);
            });

            promises.push(promise);
          }
          
          if(isDownloaded) load();
          else {
            if(sizes && sizes[0].bytes) {
              appPhotosManager.setAttachmentPreview(sizes[0].bytes, img, false, false);
            }

            this.lazyLoadQueue.push({div, load});
          }

          elemsToAppend.push(div);
          
          this.mediaDivsByIDs[message.mid] = div;
          
          //sharedMediaDiv.append(div);
        }
        
        break;
      }
      
      case 'inputMessagesFilterDocument': {
        sharedMediaDiv = this.sharedMedia.contentDocuments;
        
        for(let message of messages) {
          let div = wrapDocument(message.media.document, true);
          elemsToAppend.push(div);
        }
        break;
      }
      
      case 'inputMessagesFilterUrl': {
        sharedMediaDiv = this.sharedMedia.contentLinks;
        
        for(let message of messages) {
          let webpage = message.media.webpage;
          let div = document.createElement('div');
          
          let previewDiv = document.createElement('div');
          previewDiv.classList.add('preview');
          
          //this.log('wrapping webpage', webpage);
          
          previewDiv.innerText = (webpage.title || webpage.description || webpage.url || webpage.display_url).slice(0, 1);
          previewDiv.classList.add('empty');
          if(webpage.photo) {
            let load = () => appPhotosManager.preloadPhoto(webpage.photo.id, appPhotosManager.choosePhotoSize(webpage.photo, 60, 60))
            .then(() => {
              if($rootScope.selectedPeerID != peerID) {
                this.log.warn('peer changed');
                return;
              }

              previewDiv.classList.remove('empty');

              previewDiv.innerText = '';
              renderImageFromUrl(previewDiv, webpage.photo.url);
            });
            
            this.lazyLoadQueue.push({div: previewDiv, load});
          }
          
          let title = webpage.rTitle || '';
          let subtitle = webpage.rDescription || '';
          let url = RichTextProcessor.wrapRichText(webpage.url || '');
          
          if(!title) {
            //title = new URL(webpage.url).hostname;
            title = webpage.display_url.split('/', 1)[0];
          }
          
          div.append(previewDiv);
          div.insertAdjacentHTML('beforeend', `
          <div class="title">${title}</div>
          <div class="subtitle">${subtitle}</div>
          <div class="url">${url}</div>
          `);
          
          if(div.innerText.trim().length) {
            elemsToAppend.push(div);
          }
          
        }
        
        break;
      }
      
      case 'inputMessagesFilterMusic': {
        sharedMediaDiv = this.sharedMedia.contentAudio;
        
        for(let message of messages) {
          let div = wrapAudio(message.media.document, true);
          elemsToAppend.push(div);
        }
        break;
      }
      
      default:
        console.warn('death is my friend', messages);
        break;
    }

    if(this.loadMutex) {
      promises.push(this.loadMutex);
    }
    
    if(elemsToAppend.length) {
      if(promises.length) {
        await Promise.all(promises);
        if(this.peerID != peerID) {
          this.log.warn('peer changed');
          return;
        }
      }

      sharedMediaDiv.append(...elemsToAppend);
    }
    
    if(sharedMediaDiv) {
      let parent = sharedMediaDiv.parentElement;
      if(parent.lastElementChild.classList.contains('preloader')) {
        parent.lastElementChild.remove();
        //this.contentContainer.classList.add('loaded');
      }
    }
  }
  
  public loadSidebarMedia(single = false) {
    if(testScroll/*  || 1 == 1 */) {
      return;
    }
    
    this.log('loadSidebarMedia', single, this.peerID, this.loadSidebarMediaPromises);
    
    let peerID = this.peerID;
    
    let typesToLoad = single ? [this.sharedMediaType] : this.sharedMediaTypes;
    typesToLoad = typesToLoad.filter(type => !this.loadedAllMedia[type]);
    if(!typesToLoad.length) return;

    let loadCount = (appPhotosManager.windowH / 130 | 0) * 3; // that's good for all types
    
    let historyStorage = this.historiesStorage[peerID] ?? (this.historiesStorage[peerID] = {});

    let promises = typesToLoad.map(type => {
      if(this.loadSidebarMediaPromises[type]) return this.loadSidebarMediaPromises[type];
      
      let history = historyStorage[type] ?? (historyStorage[type] = []);

      // render from cache
      if(history.length && this.usedFromHistory[type] < history.length) {
        let messages: any[] = [];
        let used = this.usedFromHistory[type];

        do {
          let ids = history.slice(used, used + loadCount);
          this.log('loadSidebarMedia: will render from cache', used, history, ids, loadCount);
          used += ids.length;

          messages.push(...this.filterMessagesByType(ids, type));
        } while(messages.length < loadCount && used < history.length);
        
        // если перебор
        if(messages.length > loadCount) {
          let diff = messages.length - loadCount;
          messages = messages.slice(0, messages.length - diff);
          used -= diff;
        }

        this.usedFromHistory[type] = used;
        if(messages.length) {
          return this.performSearchResult(messages, type);
        }

        return Promise.resolve();
      }
      
      // заливать новую картинку сюда только после полной отправки!
      let maxID = history[history.length - 1] || 0;
      
      let ids = !maxID && appMessagesManager.historiesStorage[peerID] 
      ? appMessagesManager.historiesStorage[peerID].history.slice() : [];
      
      maxID = !maxID && ids.length ? ids[ids.length - 1] : maxID;
      this.log('loadSidebarMedia: search house of glass pre', type, ids, maxID);
      
      //let loadCount = history.length ? 50 : 15;
      return this.loadSidebarMediaPromises[type] = appMessagesManager.getSearch(peerID, '', {_: type}, maxID, loadCount)
      .then(value => {
        ids = ids.concat(value.history);
        history.push(...ids);
        
        this.log('loadSidebarMedia: search house of glass', type, value, ids);

        if($rootScope.selectedPeerID != peerID) {
          this.log.warn('peer changed');
          return;
        }
        
        if(value.history.length < loadCount) {
          this.loadedAllMedia[type] = true;
        }

        this.usedFromHistory[type] = history.length;

        if(ids.length) {
          return this.performSearchResult(this.filterMessagesByType(ids, type), type);
        }
      }, (err) => {
        this.log.error('load error:', err);
      }).then(() => {
        this.loadSidebarMediaPromises[type] = null;
      });
    });
    
    return Promise.all(promises);
  }

  public cleanup() {
    this.loadSidebarMediaPromises = {};
    this.loadedAllMedia = {};

    this.prevTabID = -1;
    this.mediaDivsByIDs = {};
    this.lazyLoadQueue.clear();

    this.sharedMediaTypes.forEach(type => {
      this.usedFromHistory[type] = 0;
    });

    this.sharedMediaType = 'inputMessagesFilterPhotoVideo';
  }

  public cleanupHTML() {
    //this.contentContainer.classList.remove('loaded');

    //this.profileContentEl.parentElement.scrollTop = 0;
    this.profileElements.bio.style.display = 'none';
    this.profileElements.phone.style.display = 'none';
    this.profileElements.username.style.display = 'none';
    this.profileElements.notificationsRow.style.display = '';
    this.profileElements.notificationsCheckbox.checked = true;
    this.profileElements.notificationsStatus.innerText = 'Enabled';

    if(this.urlsToRevoke.length) {
      this.urlsToRevoke.forEach(url => {
        URL.revokeObjectURL(url);
      });
      this.urlsToRevoke.length = 0;
    }

    Object.keys(this.sharedMedia).forEach(key => {
      this.sharedMedia[key].innerHTML = '';
      
      if(!this.historiesStorage[this.peerID] || !this.historiesStorage[this.peerID][key]) {
        let parent = this.sharedMedia[key].parentElement;
        if(!parent.querySelector('.preloader')) {
          putPreloader(parent, true);
        }
      }
    });

    if(testScroll) {
      for(let i = 0; i < 30; ++i) {
        //div.insertAdjacentHTML('beforeend', `<div style="background-image: url(assets/img/camomile.jpg);"></div>`);
        let div = document.createElement('div');
        div.classList.add('media-item');
        div.dataset.id = '' + (i / 3 | 0);
        div.innerText = '' + (i / 3 | 0);
        this.sharedMedia.contentMedia.append(div);
      }
      
      (this.profileTabs.children[1] as HTMLLIElement).click(); // set media
    }

    (this.profileTabs.firstElementChild.children[1] as HTMLLIElement).click(); // set media
  }

  public setLoadMutex(promise: Promise<any>) {
    this.loadMutex = promise;
  }

  public setPeer(peerID: number) {
    this.peerID = peerID;
    this.cleanup();
  }
  
  public fillProfileElements() {
    let peerID = this.peerID = $rootScope.selectedPeerID;

    this.cleanupHTML();

    this.profileElements.avatar.setAttribute('peer', '' + peerID);

    // username
    if(peerID != $rootScope.myID) {
      let username = appPeersManager.getPeerUsername(peerID);
      if(username) {
        setText(appPeersManager.getPeerUsername(peerID), this.profileElements.username);
      }
      
      let dialog = appMessagesManager.getDialogByPeerID(peerID)[0];
      if(dialog) {
        let muted = false;
        if(dialog.notify_settings && dialog.notify_settings.mute_until) {
          muted = new Date(dialog.notify_settings.mute_until * 1000) > new Date();
        }
        
        appImManager.setMutedState(muted);
      }
    } else {
      window.requestAnimationFrame(() => {
        this.profileElements.notificationsRow.style.display = 'none';
      });
    }
    
    let membersLi = this.profileTabs.firstElementChild.children[0] as HTMLLIElement;
    if(peerID > 0) {
      membersLi.style.display = 'none';

      let user = appUsersManager.getUser(peerID);
      if(user.phone && peerID != $rootScope.myID) {
        setText(user.rPhone, this.profileElements.phone);
      }
      
      appProfileManager.getProfile(peerID, true).then(userFull => {
        if(this.peerID != peerID) {
          this.log.warn('peer changed');
          return;
        }
        
        if(userFull.rAbout && peerID != $rootScope.myID) {
          setText(userFull.rAbout, this.profileElements.bio);
        }
        
        //this.log('userFull', userFull);
      });
    } else {
      membersLi.style.display = appPeersManager.isBroadcast(peerID) ? 'none' : '';
      let chat = appPeersManager.getPeer(peerID);
      
      appProfileManager.getChatFull(chat.id).then((chatFull: any) => {
        if(this.peerID != peerID) {
          this.log.warn('peer changed');
          return;
        }
        
        //this.log('chatInfo res 2:', chatFull);
        
        if(chatFull.about) {
          setText(RichTextProcessor.wrapRichText(chatFull.about), this.profileElements.bio);
        }
      });
    }
  }
}

const appSidebarRight = new AppSidebarRight();
(window as any).appSidebarRight = appSidebarRight;
export default appSidebarRight;